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https://www.readbyqxmd.com/read/28207320/cardiac-findings-in-quarter-horses-with-heritable-equine-regional-dermal-asthenia
#1
Erin L Brinkman, Benjamin C Weed, Sourav S Patnaik, Bryn L Brazile, Ryan M Centini, Robert W Wills, Bari Olivier, Dodd G Sledge, Jim Cooley, Jun Liao, Ann M Rashmir-Raven
OBJECTIVE To compare biomechanical and histologic features of heart valves and echocardiographic findings between Quarter Horses with and without heritable equine regional dermal asthenia (HERDA). DESIGN Prospective case-control study. ANIMALS 41 Quarter Horses. PROCEDURES Ultimate tensile strength (UTS) of aortic and mitral valve leaflets was assessed by biomechanical testing in 5 horses with HERDA and 5 horses without HERDA (controls). Histologic evaluation of aortic and mitral valves was performed for 6 HERDA-affected and 3 control horses...
March 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28198407/comparative-proteomic-analysis-of-horseweed-conyza-canadensis-biotypes-identifies-candidate-proteins-for-glyphosate-resistance
#2
Fidel González-Torralva, Adrian P Brown, Stephen Chivasa
Emergence of glyphosate-resistant horseweed (Conyza canadensis) biotypes is an example of how unrelenting use of a single mode of action herbicide in agricultural weed control drives genetic adaptation in targeted species. While in other weeds glyphosate resistance arose from target site mutation or target gene amplification, the resistance mechanism in horseweed uses neither of these, being instead linked to reduced herbicide uptake and/or translocation. The molecular components underpinning horseweed glyphosate-resistance remain unknown...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28196091/pre-breeding-of-lentil-lens-culinaris-medik-for-herbicide-resistance-through-seed-mutagenesis
#3
Muhammad Rizwan, Muhammad Aslam, Muhammad Jawad Asghar, Ghulam Abbas, Tariq Mahmud Shah, Hussein Shimelis
Lentil is a poor competitor of weeds and its sensitivity to herbicides is a major hurdle for large scale production. The present study was conducted to select herbicide resistant lentil genotypes through seed mutagenesis. Seeds of three advanced lentil genotypes (LPP 11001, LPP 11100 and LPP 11116) were treated with two different concentrations of ethyl methanesulfonate (EMS; 0.1 and 0.2%), hydrazine hydrate (HH; 0.02 and 0.03%) and sodium azide (SA; 0.01 and 0.02%) to develop M1 seed. The M2 was screened against two herbicides including Ally Max 28...
2017: PloS One
https://www.readbyqxmd.com/read/28194318/cropping-system-diversification-for-food-production-in-mindanao-rubber-plantations-a-rice-cultivar-mixture-and-rice-intercropped-with-mungbean
#4
Rosa Fe Hondrade, Edwin Hondrade, Lianqing Zheng, Francisco Elazegui, Jo-Anne Lynne Joy E Duque, Christopher C Mundt, Casiana M Vera Cruz, Karen A Garrett
Including food production in non-food systems, such as rubber plantations and biofuel or bioenergy crops, may contribute to household food security. We evaluated the potential for planting rice, mungbean, rice cultivar mixtures, and rice intercropped with mungbean in young rubber plantations in experiments in the Arakan Valley of Mindanao in the Philippines. Rice mixtures consisted of two- or three-row strips of cultivar Dinorado, a cultivar with higher value but lower yield, and high-yielding cultivar UPL Ri-5...
2017: PeerJ
https://www.readbyqxmd.com/read/28194190/prevalence-of-allergen-sensitization-in-1000-adults-in-saskatchewan
#5
Stacey D Lok, Beth E Davis, Donald W Cockcroft
BACKGROUND: The prevalence of sensitization varies geographically based on multiple environmental factors including humidity. The aim of this study was to determine the prevalence of atopy in symptomatic adults. More importantly we aimed to obtain a regional statistic of sensitization to common allergens given Saskatchewan's dry climate. METHODS: One thousand consecutive symptomatic adults were screened for atopy via skin prick test over 10 years (2006-2016) in the Division of Respirology...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28188550/quantification-of-the-fate-of-mesotrione-applied-alone-or-in-a-herbicide-mixture-in-two-brazilian-arable-soils
#6
Kassio Ferreira Mendes, Bianca Assis Barbosa Martins, Marcelo Rodrigues Dos Reis, Rodrigo Floriano Pimpinato, Valdemar Luiz Tornisielo
The effects of mesotrione, S-metolachlor, and terbuthylazine, applied in mixture, on soil biodegradation remain insufficiently researched. However, herbicide mixtures have been a common practice in agricultural systems in the last years. Understanding the fate of soil-applied herbicides may help on planning weed management tactics towards more sustainable and efficient weed control. Therefore, this study evaluated the fate of mesotrione alone and in mixture with S-metolachlor and terbuthylazine when applied to two contrasting arable Brazilian soils...
February 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28186362/effects-of-the-herbicide-triclopyr-on-metamorphic-northern-red-legged-frogs
#7
Amy E Yahnke, Christian E Grue, Marc P Hayes, Schuyler Pearman-Gillman
Aquatic herbicides are used to manage invasive emergent plants in and around wetlands. Metamorphic frogs that emerge during the aquatic weed management season may be at risk of herbicide exposure. Metamorphic northern red-legged frogs (Rana aurora) were exposed to a triclopyr tank mix labelled for control of broadleaf emergent aquatic weeds such as invasive purple loosestrife (Lythrum salicaria). The tank mix consisted of Renovate® 3 (triclopyr triethylamine salt [TEA] 44.4%), the modified vegetable oil surfactant Competitor®, and marker dye Hi-Light®...
February 10, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28182314/exotic-weeds-and-fluctuating-microclimate-can-constrain-native-plant-regeneration-in-urban-forest-restoration
#8
K J Wallace, Daniel C Laughlin, Bruce D Clarkson
Restoring forest structure and composition is an important component of urban land management, but we lack clear understanding of the mechanisms driving restoration success. Here we studied two indicators of restoration success in temperate rainforests: native tree regeneration and epiphyte colonization. We hypothesized that ecosystem properties such as forest canopy openness, abundance of exotic herbaceous weeds, and the microclimate directly affect the density and diversity of native tree seedlings and epiphytes...
February 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28174591/development-of-a-triple-gene-cry1ac-cry2ab-epsps-construct-and-its-expression-in-nicotiana-benthamiana-for-insect-resistance-and-herbicide-tolerance-in-plants
#9
Rubab Z Naqvi, Muhammad Asif, Muhammad Saeed, Shaheen Asad, Asia Khatoon, Imran Amin, Zahid Mukhtar, Aftab Bashir, Shahid Mansoor
Insect pest complex, cotton leaf curl disease and weeds pose major threat to crop production worldwide, including Pakistan. To address these problems, in the present study a triple gene construct harboring Cry1Ac, Cry2Ab, and EPSPS cassettes has been developed for plant specifically in cotton transformation against lepidopteron insect-pests and weeds. Nicotiana benthamiana (tobacco) was used as a model system for characterization of this triple gene construct. The construct has been assembled in plant expression vector and transformed in N...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28166300/impacts-of-human-related-practices-on-ommatissus-lybicus-infestations-of-date-palm-in-oman
#10
Khalifa M Al-Kindi, Paul Kwan, Nigel R Andrew, Mitchell Welch
Date palm cultivation is economically important in the Sultanate of Oman, with significant financial investments coming from both the government and private individuals. However, a widespread Dubas bug (DB) (Ommatissus lybicus Bergevin) infestation has impacted regions including the Middle East, North Africa, Southeast Russia, and Spain, resulting in widespread damages to date palms. In this study, techniques in spatial statistics including ordinary least squares (OLS), geographically weighted regression (GRW), and exploratory regression (ER) were applied to (a) model the correlation between DB infestations and human-related practices that include irrigation methods, row spacing, palm tree density, and management of undercover and intercropped vegetation, and (b) predict the locations of future DB infestations in northern Oman...
2017: PloS One
https://www.readbyqxmd.com/read/28166269/to-mulch-or-not-to-mulch-effects-of-gravel-mulch-toppings-on-plant-establishment-and-development-in-ornamental-prairie-plantings
#11
Anja Schmithals, Norbert Kühn
In recent years, North American prairie vegetation has served as a design model for highly attractive, low-cost and low-maintenance plantings in German urban green spaces. Where mixed-planting techniques, gravel mulch toppings and non-selective maintenance techniques such as mowing are used, prairie plantings are considered to be cost-effective alternative design concepts for public green space management. In this study, we investigated the establishment success of different mixtures of prairie species plantings on two sites with different soil conditions: topsoil and topsoil with graywacke gravel topping...
2017: PloS One
https://www.readbyqxmd.com/read/28163993/herbicide-resistance-and-biodiversity-agronomic-and-environmental-aspects-of-genetically-modified-herbicide-resistant-plants
#12
REVIEW
Gesine Schütte, Michael Eckerstorfer, Valentina Rastelli, Wolfram Reichenbecher, Sara Restrepo-Vassalli, Marja Ruohonen-Lehto, Anne-Gabrielle Wuest Saucy, Martha Mertens
Farmland biodiversity is an important characteristic when assessing sustainability of agricultural practices and is of major international concern. Scientific data indicate that agricultural intensification and pesticide use are among the main drivers of biodiversity loss. The analysed data and experiences do not support statements that herbicide-resistant crops provide consistently better yields than conventional crops or reduce herbicide amounts. They rather show that the adoption of herbicide-resistant crops impacts agronomy, agricultural practice, and weed management and contributes to biodiversity loss in several ways: (i) many studies show that glyphosate-based herbicides, which were commonly regarded as less harmful, are toxic to a range of aquatic organisms and adversely affect the soil and intestinal microflora and plant disease resistance; the increased use of 2,4-D or dicamba, linked to new herbicide-resistant crops, causes special concerns...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28162422/-194-the-use-of-the-world-health-organization-disability-assessment-schedule-whodas-2-0-in-a-chronic-pain-population-the-importance-of-functional-assessment-in-the-context-of-opioid-risk-evaluations
#13
V Weed, M Finkelman, K Wawrzyniak, R Kulich, E Myrta, D DiBenedetto
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28160348/phoma-crystallifera-with-phytotoxic-effects-and-pathogenic-potential-against-field-bindweed-convolvulus-arvensis-l-in-iran
#14
Parisa Razaghi, Doustmorad Zafari
AIMS: To identify a potential pathogenic isolate of fungus on Convolvulus arvensis and to determine its phytotoxic activity, which revealed the presence of toxic metabolites responsible for the toxicity against the target weed. METHODS AND RESULTS: A high virulent isolate of the fungus, Phoma crystallifera was isolated from symptomatic field bindweed in the west of Iran and was screened for the production of phytotoxins, which promoted necrosis on the detached leaves and seedlings of field bindweed in the bioassays...
February 4, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28152978/chloroplast-genome-resources-and-molecular-markers-differentiate-rubber-dandelion-species-from-weedy-relatives
#15
Yingxiao Zhang, Brian J Iaffaldano, Xiaofeng Zhuang, John Cardina, Katrina Cornish
BACKGROUND: Rubber dandelion (Taraxacum kok-saghyz, TK) is being developed as a domestic source of natural rubber to meet increasing global demand. However, the domestication of TK is complicated by its colocation with two weedy dandelion species, Taraxacum brevicorniculatum (TB) and the common dandelion (Taraxacum officinale, TO). TB is often present as a seed contaminant within TK accessions, while TO is a pandemic weed, which may have the potential to hybridize with TK. To discriminate these species at the molecular level, and facilitate gene flow studies between the potential rubber crop, TK, and its weedy relatives, we generated genomic and marker resources for these three dandelion species...
February 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28150381/interactions-of-glyphosate-use-with-farm-characteristics-and-cropping-patterns-in-central-europe
#16
Armin Wiese, Michael Schulte, Ludwig Theuvsen, Horst-Henning Steinmann
BACKGROUND: Although glyphosate is the most widely used herbicide in the European Union, little is known about the patterns of its usage in arable farming. Therefore, a nation-wide survey of 2,026 German farmers was analyzed to obtain further knowledge about glyphosate applications in conventional European arable farming. Given its broad range of agri-environmental and farm type conditions, Germany can be regarded as a suitable study region to represent Central European farming. The growing season 2013/14 was set as a reference...
February 2, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28145799/-it-takes-longer-but-when-it-hits-you-it-hits-you-videos-about-marijuana-edibles-on-youtube
#17
Melissa J Krauss, Shaina J Sowles, Haley E Stelzer-Monahan, Tatiana Bierut, Patricia A Cavazos-Rehg
BACKGROUND: Interest in marijuana edibles has increased as perceptions of harm from marijuana have decreased. Media and peer influences impact youth substance use, and YouTube is the most popular video-sharing website. No studies have examined the content and accessibility of YouTube videos related to marijuana edibles. OBJECTIVES: To describe the messages conveyed to viewers in YouTube videos about edibles and determine their accessibility to youth. METHODS: On June 12, 2015, we searched YouTube for videos about marijuana/cannabis/weed edibles...
February 1, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28132910/b-973-a-novel-piperazine-positive-allosteric-modulator-of-the-%C3%AE-7-nicotinic-acetylcholine-receptor
#18
Debra J Post-Munson, Rick L Pieschl, Thaddeus F Molski, John D Graef, Adam W Hendricson, Ronald J Knox, Ivar M McDonald, Richard E Olson, John E Macor, Michael R Weed, Linda J Bristow, Laszlo Kiss, Michael K Ahlijanian, James Herrington
The alpha7 (α7) nicotinic acetylcholine receptor is a therapeutic target for cognitive disorders. Here we describe 3-(3,4-difluorophenyl)-N-(1-(6-(4-(pyridin-2-yl)piperazin-1-yl)pyrazin-2-yl)ethyl)propanamide (B-973), a novel piperazine-containing molecule that acts as a positive allosteric modulator of the α7 receptor. We characterize the action of B-973 on the α7 receptor using electrophysiology and radioligand binding. At 0.1mM acetylcholine, 1μM B-973 potentiated peak acetylcholine-induced currents 6-fold relative to maximal acetylcholine (3mM) and slowed channel desensitization, resulting in a 6900-fold increase in charge transfer...
January 26, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28128559/4-hydroxyphenylpyruvate-dioxygenase-and-its-inhibition-in-plants-and-animals-small-molecules-as-herbicides-and-agents-for-the-treatment-of-human-inherited-diseases
#19
Annalisa Santucci, Giulia Bernardini, Daniela Braconi, Elena Petricci, Fabrizio Manetti
This review mainly focuses on the physiological function of 4-hydroxyphenylpyruvate dioxygenase (HPPD), as well as on the development and application of HPPD inhibitors of several structural classes. Among them, one illustrative example is represented by compounds belonging to the class of triketone compounds. They were discovered by serendipitous observations on weed growth and were developed as bleaching herbicides. Informed reasoning on nitisinone (NTBC, 14), a triketone that failed to reach the final steps of the herbicidal design and development process, allowed it to become a curative agent for type I tyrosinemia (T1T), and to enter clinical trials for alkaptonuria...
January 27, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28112904/reducing-freshwater-toxicity-while-maintaining-weed-control-profits-and-productivity-effects-of-increased-crop-rotation-diversity-and-reduced-herbicide-usage
#20
Natalie D Hunt, Jason D Hill, Matt Liebman
Increasing crop rotation diversity while reducing herbicide applications may maintain effective weed control while reducing freshwater toxicity. To test this hypothesis, we applied the model USEtox 2.0 to data from a long-term Iowa field experiment that included three crop rotation systems: a 2-year corn-soybean sequence, a 3-year corn-soybean-oat/red clover sequence, and 4-year corn-soybean-oat/alfalfa-alfalfa sequence. Corn and soybean in each rotation were managed with conventional or low-herbicide regimes...
January 23, 2017: Environmental Science & Technology
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